| // SPDX-License-Identifier: GPL-2.0 OR MIT |
| /* |
| * Copyright 2009 VMware, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Michel Dänzer |
| */ |
| |
| #include <drm/amdgpu_drm.h> |
| #include "amdgpu.h" |
| #include "amdgpu_uvd.h" |
| #include "amdgpu_vce.h" |
| |
| /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */ |
| static void amdgpu_do_test_moves(struct amdgpu_device *adev) |
| { |
| struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; |
| struct amdgpu_bo *vram_obj = NULL; |
| struct amdgpu_bo **gtt_obj = NULL; |
| struct amdgpu_bo_param bp; |
| uint64_t gart_addr, vram_addr; |
| unsigned n, size; |
| int i, r; |
| |
| size = 1024 * 1024; |
| |
| /* Number of tests = |
| * (Total GTT - IB pool - writeback page - ring buffers) / test size |
| */ |
| n = adev->gmc.gart_size - AMDGPU_IB_POOL_SIZE*64*1024; |
| for (i = 0; i < AMDGPU_MAX_RINGS; ++i) |
| if (adev->rings[i]) |
| n -= adev->rings[i]->ring_size; |
| if (adev->wb.wb_obj) |
| n -= AMDGPU_GPU_PAGE_SIZE; |
| if (adev->irq.ih.ring_obj) |
| n -= adev->irq.ih.ring_size; |
| n /= size; |
| |
| gtt_obj = kcalloc(n, sizeof(*gtt_obj), GFP_KERNEL); |
| if (!gtt_obj) { |
| DRM_ERROR("Failed to allocate %d pointers\n", n); |
| r = 1; |
| goto out_cleanup; |
| } |
| memset(&bp, 0, sizeof(bp)); |
| bp.size = size; |
| bp.byte_align = PAGE_SIZE; |
| bp.domain = AMDGPU_GEM_DOMAIN_VRAM; |
| bp.flags = 0; |
| bp.type = ttm_bo_type_kernel; |
| bp.resv = NULL; |
| |
| r = amdgpu_bo_create(adev, &bp, &vram_obj); |
| if (r) { |
| DRM_ERROR("Failed to create VRAM object\n"); |
| goto out_cleanup; |
| } |
| r = amdgpu_bo_reserve(vram_obj, false); |
| if (unlikely(r != 0)) |
| goto out_unref; |
| r = amdgpu_bo_pin(vram_obj, AMDGPU_GEM_DOMAIN_VRAM); |
| if (r) { |
| DRM_ERROR("Failed to pin VRAM object\n"); |
| goto out_unres; |
| } |
| vram_addr = amdgpu_bo_gpu_offset(vram_obj); |
| for (i = 0; i < n; i++) { |
| void *gtt_map, *vram_map; |
| void **gart_start, **gart_end; |
| void **vram_start, **vram_end; |
| struct dma_fence *fence = NULL; |
| |
| bp.domain = AMDGPU_GEM_DOMAIN_GTT; |
| r = amdgpu_bo_create(adev, &bp, gtt_obj + i); |
| if (r) { |
| DRM_ERROR("Failed to create GTT object %d\n", i); |
| goto out_lclean; |
| } |
| |
| r = amdgpu_bo_reserve(gtt_obj[i], false); |
| if (unlikely(r != 0)) |
| goto out_lclean_unref; |
| r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT); |
| if (r) { |
| DRM_ERROR("Failed to pin GTT object %d\n", i); |
| goto out_lclean_unres; |
| } |
| r = amdgpu_ttm_alloc_gart(>t_obj[i]->tbo); |
| if (r) { |
| DRM_ERROR("%p bind failed\n", gtt_obj[i]); |
| goto out_lclean_unpin; |
| } |
| gart_addr = amdgpu_bo_gpu_offset(gtt_obj[i]); |
| |
| r = amdgpu_bo_kmap(gtt_obj[i], >t_map); |
| if (r) { |
| DRM_ERROR("Failed to map GTT object %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| for (gart_start = gtt_map, gart_end = gtt_map + size; |
| gart_start < gart_end; |
| gart_start++) |
| *gart_start = gart_start; |
| |
| amdgpu_bo_kunmap(gtt_obj[i]); |
| |
| r = amdgpu_copy_buffer(ring, gart_addr, vram_addr, |
| size, NULL, &fence, false, false); |
| |
| if (r) { |
| DRM_ERROR("Failed GTT->VRAM copy %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| r = dma_fence_wait(fence, false); |
| if (r) { |
| DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| dma_fence_put(fence); |
| fence = NULL; |
| |
| r = amdgpu_bo_kmap(vram_obj, &vram_map); |
| if (r) { |
| DRM_ERROR("Failed to map VRAM object after copy %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| for (gart_start = gtt_map, gart_end = gtt_map + size, |
| vram_start = vram_map, vram_end = vram_map + size; |
| vram_start < vram_end; |
| gart_start++, vram_start++) { |
| if (*vram_start != gart_start) { |
| DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, " |
| "expected 0x%p (GTT/VRAM offset " |
| "0x%16llx/0x%16llx)\n", |
| i, *vram_start, gart_start, |
| (unsigned long long) |
| (gart_addr - adev->gmc.gart_start + |
| (void*)gart_start - gtt_map), |
| (unsigned long long) |
| (vram_addr - adev->gmc.vram_start + |
| (void*)gart_start - gtt_map)); |
| amdgpu_bo_kunmap(vram_obj); |
| goto out_lclean_unpin; |
| } |
| *vram_start = vram_start; |
| } |
| |
| amdgpu_bo_kunmap(vram_obj); |
| |
| r = amdgpu_copy_buffer(ring, vram_addr, gart_addr, |
| size, NULL, &fence, false, false); |
| |
| if (r) { |
| DRM_ERROR("Failed VRAM->GTT copy %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| r = dma_fence_wait(fence, false); |
| if (r) { |
| DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| dma_fence_put(fence); |
| fence = NULL; |
| |
| r = amdgpu_bo_kmap(gtt_obj[i], >t_map); |
| if (r) { |
| DRM_ERROR("Failed to map GTT object after copy %d\n", i); |
| goto out_lclean_unpin; |
| } |
| |
| for (gart_start = gtt_map, gart_end = gtt_map + size, |
| vram_start = vram_map, vram_end = vram_map + size; |
| gart_start < gart_end; |
| gart_start++, vram_start++) { |
| if (*gart_start != vram_start) { |
| DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " |
| "expected 0x%p (VRAM/GTT offset " |
| "0x%16llx/0x%16llx)\n", |
| i, *gart_start, vram_start, |
| (unsigned long long) |
| (vram_addr - adev->gmc.vram_start + |
| (void*)vram_start - vram_map), |
| (unsigned long long) |
| (gart_addr - adev->gmc.gart_start + |
| (void*)vram_start - vram_map)); |
| amdgpu_bo_kunmap(gtt_obj[i]); |
| goto out_lclean_unpin; |
| } |
| } |
| |
| amdgpu_bo_kunmap(gtt_obj[i]); |
| |
| DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", |
| gart_addr - adev->gmc.gart_start); |
| continue; |
| |
| out_lclean_unpin: |
| amdgpu_bo_unpin(gtt_obj[i]); |
| out_lclean_unres: |
| amdgpu_bo_unreserve(gtt_obj[i]); |
| out_lclean_unref: |
| amdgpu_bo_unref(>t_obj[i]); |
| out_lclean: |
| for (--i; i >= 0; --i) { |
| amdgpu_bo_unpin(gtt_obj[i]); |
| amdgpu_bo_unreserve(gtt_obj[i]); |
| amdgpu_bo_unref(>t_obj[i]); |
| } |
| if (fence) |
| dma_fence_put(fence); |
| break; |
| } |
| |
| amdgpu_bo_unpin(vram_obj); |
| out_unres: |
| amdgpu_bo_unreserve(vram_obj); |
| out_unref: |
| amdgpu_bo_unref(&vram_obj); |
| out_cleanup: |
| kfree(gtt_obj); |
| if (r) { |
| pr_warn("Error while testing BO move\n"); |
| } |
| } |
| |
| void amdgpu_test_moves(struct amdgpu_device *adev) |
| { |
| if (adev->mman.buffer_funcs) |
| amdgpu_do_test_moves(adev); |
| } |